Compact 12V diaphragm pump for marine and freshwater systems — self‑priming, adjustable pressure switch and designed for quiet, reliable service.

• The water pressure pump - 41 series has: a 4‑chamber diaphragm, on‑demand long‑life pressure switch and adjustable pressure switch.
• Flow: 17.0 L/min (4.5 US gpm); Voltage: 12 V; Max draw: 12.13 A.
• Self‑priming to 1.8 m (6'); can be run dry; internal bypass technology reduces cycling.
• Shut‑off pressures: 17 PSI (9 PSI ±5 PSI / ±0.3 bar), 35 PSI (25 PSI ±5 PSI / ±0.3 bar), 40 PSI (30 PSI ±5 PSI / ±0.3 bar).
• Valves: EPDM; Diaphragm: Santoprene; Inlet/Outlet Ports: 3/4" quick‑connect fittings.
• Temperature limit 60°C (140°F); thermal overload protection; marine‑grade blocked wiring.
• Quiet operation with rubber feet and industry‑standard mount pattern; suitable for fresh and salt water.
• Supplies up to 4 fixtures (4.5 gpm model); backed by a 4‑year warranty.